David Jankowsky


Cross Calibration of the H.E.S.S. Telescopes(pdf)

The H.E.S.S. experiment consists of five imaging atmospheric Cherenkov telescopes, four smaller ones with identical mirror area and a larger one. It is best suited for the investigation of cosmic-rays in the energy range of about 30 GeV up to 100 TeV. To guarantee high quality data and the best possible physical output, it is essential that the data are well understood. This talk illustrates the basics of the standard reconstruction process and the methods of inter and cross calibration which can be used to investigate the acquired data. This calibration is done by comparing the reconstructed image amplitudes and the energies of the individual H.E.S.S. telescopes. These methods are outlined and examined with the help of Monte Carlo simulations. They show to be a useful tool to investigate the current states of the different telescopes and will be especially needed for the future experiment CTA which will consist of more than 100 telescopes of three different sizes.